Spencer, IA: May

31 May 2026: May 2026 averaged 58.3°F in Spencer, IA, the coldest May since 2019, tied 50th coldest of 112 (with 1923).

May 2026

Mean temperature: 58.3°F; Coldest since 2019; 50th coldest of 112
Precipitation: 3.13 in; Driest since 2025; 41st driest of 109

A normal May in Spencer, IA (1991 to 2020): a mean temperature of 58.6°F, between 55.4°F and 63.3°F in eight years of ten and 3.68 in of precipitation, between 1.48 in and 6.47 in in eight years of ten.

The mean temperature of every May in Spencer, IA since 1895: 58.3°F in 2026; the lowest is 52.1°F, in 1924.

Normal range, 55.4 to 63.3°F

Every year, ranked, as a table

Every May in Spencer, IA from 1895 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	58.3	62	72.9	37	43.8	89	3.13	69	0
2025	59.2	48	72.5	41	45.9	65	2.32	88	0
2024	61.8	26	74.6	23	49	31	6.99	5	0
2023	64.2	11	78.1	8	50.3	20	4.74	30	0
2022	60.9	31	73.1	35	48.6	34	3.50	56	1
2021	59	50	70.7	62	47.2	49	3.10	70	0
2020	58.4	61	69.1	78	47.8	43	4.51	36	2
2019	56.6	85	66.7	96	46.5	54	6.42	9	0
2018	65.9	5	78.1	8	53.7	4	3.45	60	0
2017	57.8	70	70.6	65	45	76	4.30	41	0
2016	58.8	55	71	56	46.5	54	4.21	44	0
2015	58.9	53	69.5	73	48.2	39	3.69	51	0
2014	58.8	55	72.5	41	45.2	73	1.42	99	0
2013	57.4	74	68.1	89	46.7	53	7.09	3	0
2012	63.4	13	76.4	13	50.4	18	7.00	4	0
2011	57.5	72	69.3	77	45.7	68	6.07	13	0
2010	57.9	68	71.4	51	44.5	82	1.29	100	0
2009	58.9	53	71.7	50	46.2	62	3.34	66	0
2008	56.1	92	68.6	83	43.5	90	3.60	53	0
2007	64.4	10	76.2	15	52.6	6	3.39	63	2
2006	60.6	36	72.7	39	48.5	35	1.22	106	0
2005	57.9	68	69.5	73	46.4	59	3.21	67	0
2004	59.2	48	70.9	59	47.5	45	4.60	34	0
2003	56.4	87	67.9	91	44.9	79	3.98	46	0
2002	55.1	98	68.6	83	41.6	105	2.43	85	0
2001	58.2	64	68.4	85	48	42	5.13	23	2
2000	60.8	33	73.4	31	48.1	40	3.67	52	0
1999	59.9	40	70.6	65	49.1	29	2.38	86	0
1998	63.3	15	76.1	16	50.6	17	3.10	70	0
1997	52.2	111	64.2	110	40.6	110	3.58	54	1
1996	55.1	98	64.2	110	46.1	63	3.77	50	0
1995	55.4	97	65.7	105	45.1	74	5.34	19	0
1994	62	23	75.3	19	48.7	33	1.49	97	0
1993	56.7	84	65.9	102	47.5	45	6.89	7	0
1992	59.7	44	72.4	43	47.1	51	3.39	63	0
1991	63	17	72	46	54	3	4.88	28	0
1990	55.5	96	66.5	99	44.5	82	4.66	33	0
1989	58.8	55	73	36	44.5	82	1.26	104	0
1988	66.6	4	80.2	3	53.1	5	1.50	96	0
1987	65.3	6	78.4	7	52.3	8	4.69	31	0
1986	60.2	39	70.7	62	49.6	26	5.39	17	0
1985	62.7	19	74.4	24	51	13	4.57	35	0
1984	56.6	85	67.7	92	45.5	69	4.34	38	0
1983	54.6	103	66.6	98	42.6	98	2.92	73	0
1982	60.6	36	70	71	51.2	12	6.58	8	0
1981	57.2	76	69.5	73	45	76	4.21	44	0
1980	59	50	73.9	27	44.2	86	3.48	57	0
1979	55.8	94	68.2	86	43.5	90	2.58	81	0
1978	59.8	43	72.4	43	47.2	49	2.60	80	0
1977	67	2	79.8	4	54.2	1	2.44	84	0
1975	62.5	20	74.9	20	50.1	22	4.31	39	0
1974	56.8	81	68.2	86	45.5	69	2.38	86	0
1972	59.7	44	71.4	51	48.1	40	3.43	61	0
1971	56	93	69.1	78	42.9	97	2.27	89	0
1970	61.1	30	72.1	45	50	23	5.57	16	0
1969	59.9	40	71	56	48.8	32	5.05	24	0
1968	53.5	107	66.1	101	41	106	2.45	83	0
1967	53.9	104	65.9	102	41.9	102	3.35	65	0
1966	54.8	102	68.9	82	40.7	108	3.04	72	0
1965	61.9	25	74.4	24	49.4	27	5.15	22	0
1964	63.6	12	76.6	12	50.7	16	3.94	47	0
1963	58.2	64	70.1	70	46.4	59	2.20	91	0
1962	63.4	13	74.7	22	52	9	2.85	74	0
1961	55	100	67	95	43	96	3.41	62	0
1960	58.1	66	70.2	69	45.9	65	6.99	5	0
1959	59.9	40	70.5	67	49.2	28	11.40	1	0
1958	60.7	35	75.6	17	45.9	65	1.27	101	0
1957	55.7	95	66.4	100	45	76	5.84	14	0
1956	58.8	55	71.2	54	46.3	61	2.63	78	0
1955	62.4	21	76.4	13	48.4	36	1.83	95	0
1954	52.9	108	65.9	102	39.9	111	3.20	68	0
1953	57	80	69.4	76	44.7	80	1.91	94	1
1952	56.2	88	68.2	86	44.3	85	2.73	76	0
1951	59.6	46	70.9	59	48.3	37	5.17	21	0
1950									12
1949	60.9	31	72.7	39	49.7	24	4.43	37	2
1948	56.2	88	68.1	89	44.2	86			0
1947	52.7	110	64.8	108	40.7	108			0
1946	53.7	105	65.4	107	42	101			0
1945	52.9	108	63.9	112	41.8	103	4.95	27	0
1944	63.2	16	73.7	28	52.6	6	4.78	29	0
1943	56.2	88	69	80	43.4	92	4.67	32	0
1942	57.7	71	69	80	46.5	54	7.14	2	0
1941	65.2	7	79.1	5	51.3	11	2.02	93	0
1940	57.2	76	71.8	47	42.5	100	1.27	101	0
1939	66.7	3	81.5	2	51.8	10	2.79	75	0
1938	57.1	79	67.6	93	46.5	54	6.08	12	0
1937	61.5	28	73.2	33	49.7	24	6.41	10	0
1936	64.5	9	78	10	51	13	3.48	57	0
1935	53.7	105	64.7	109	42.6	98	2.63	78	1
1934	70.5	1	86.9	1	54.2	1	0.24	109	0
1933	59.3	47	71.1	55	47.5	45	1.27	101	0
1932	61.2	29	74.9	20	47.5	45	4.24	43	0
1931	57.5	72	71.8	47	43.1	95	2.47	82	0
1930	59	50	71.3	53	46.8	52	4.31	39	0
1929	56.8	81	70.4	68	43.2	94	2.05	92	1
1928	62	23	77.5	11	46.5	54	3.91	48	0
1927	56.2	88	67.4	94	45.1	74	5.02	25	0
1926	64.7	8	78.5	6	50.8	15	3.51	55	0
1925	57.2	76	73.5	29	40.9	107	0.33	108	0
1924	52.1	112	65.6	106	38.5	112	1.46	98	0
1923	58.3	62	71	56	45.5	69	2.66	77	0
1922	61.6	27	74.2	26	49.1	29	1.23	105	0
1921	62.3	22	73.2	33	50.2	21	5.38	18	2
1920	58.5	60	70.9	59	46	64	3.82	49	0
1919							3.47	59	13
1915	55	100	66.7	96	43.3	93	4.29	42	2
1914	60.3	38	72.9	37	47.7	44	6.11	11	0
1912	60.8	33	73.3	32	48.3	37			0
1911									4
1899	58.1	66	70.7	62	45.5	69	5.28	20	2
1898	57.4	74	70	71	44.7	80	5.00	26	0
1897	56.8	81	71.8	47	41.8	103	0.62	107	0
1896	63	17	75.6	17	50.4	18	5.63	15	0
1895	58.7	59	73.5	29	43.9	88	2.23	90	1

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1934	70.5
1977	67
1939	66.7
1988	66.6
2018	65.9
1987	65.3
1941	65.2
1926	64.7
1936	64.5
2007	64.4

Coldest
Year	Mean, °F
1924	52.1
1997	52.2
1947	52.7
1954	52.9
1945	52.9
1968	53.5
1946	53.7
1935	53.7
1967	53.9
1983	54.6

Wettest
Year	Precipitation, in
1959	11.40
1942	7.14
2013	7.09
2012	7.00
2024	6.99
1960	6.99
1993	6.89
1982	6.58
2019	6.42
1937	6.41

Driest
Year	Precipitation, in
1934	0.24
1925	0.33
1897	0.62
2006	1.22
1922	1.23
1989	1.26
1958	1.27
1940	1.27
1933	1.27
2010	1.29

The hottest, coldest and wettest days

Hottest day: 91°F; 15 May 2026
Coldest night: 23°F; 6 May 2026
Wettest day: 1.04 in; 22 May 2026

Every month, season and year

Months

Seasons

Years

Spencer, IA the day's answers

All-time records

Every answer in words

May 2026 brought 3.13 in of precipitation in Spencer, IA, the driest May since 2025, 41st driest of 109.
The hottest day of May 2026 in Spencer, IA: 91°F on Friday 15 May 2026.
The coldest night of May 2026 in Spencer, IA: a low of 23°F on Wednesday 6 May 2026.
The wettest day of May 2026 in Spencer, IA: 1.04 in on Friday 22 May 2026.